Most refrigerators only have one compressor. Top/ bottom fridges use the "excess" cold air from the freezer to cool the fridge. If your compressor keeps turning on, I would check the temperature settings first, then the other parameters in the controller. Then the wiring. If it is hooked up like mine is, the fridge doesnt even get electricity untill it is above the set temperature+variance. You may have some wires crossed, somewhere.

The problem ended up being simple. I was trying to get my already cool fridge (45 degrees) to match the temp control which was throwing it off.

I turned off the fridge/temp controller and let it warm up to garage temp. I kicked it on to 25 Celsius and am right on the money inside. I'm so stoked to brew this weekend!

__________________Support your local homebrew shop."You know, I pride myself on being a good host, so I'm obliged to offer you a beer - but I'm so darn mad, it's going to be MOSTLY HEAD!!!" -Ned Flanders

You may want to tape the sensor directly to your carboy. I did this after it was cooled down, and with the georgia humdity outside, it quickly began to sweat, which made it impossibable for the tape to stick to it. I found I had to wrap duct tapetl l the way around the carboy. And stick it to its srlfx mk

Lol, thanks for your concern. Long days at work, beginning at 5 am. And a couple of beers makes for a drowsy boy. I was apparently dozing off while posting that. So I will clarify, I tried to tape the sensor to the glass carboy, after it had been in the fermenter for about 3 days but the humidity was causing profuse sweating, therefore even the almighty duct tape wouldnt stick. So I ended up having to wrap the duct tape all the way around the carboy so that it would stick to its self. I am going to brew an irish red this weekend and will probably fashion an elastic belt to hold the sensor in place.

just wired one up for my keezer to be! laser cut some abs plastic to make a project box and am going to hook it up tomorrow night! too tired from working on my keggle to deal with it tonight! thanks for the pics - reallly helped me, as i had never wired anything up before! the one thing i had trouble with was the jumper between the cold and the hot - i had no idea what it was!! some knowledgeable friends pointed it out and all was well! thanksa gain!

Lol, thanks for your concern. Long days at work, beginning at 5 am. And a couple of beers makes for a drowsy boy. I was apparently dozing off while posting that. So I will clarify, I tried to tape the sensor to the glass carboy, after it had been in the fermenter for about 3 days but the humidity was causing profuse sweating, therefore even the almighty duct tape wouldnt stick. So I ended up having to wrap the duct tape all the way around the carboy so that it would stick to its self. I am going to brew an irish red this weekend and will probably fashion an elastic belt to hold the sensor in place.

I put the probe against the carboy/keg, put about 5 layers of bubble wrap over it, then use a bungee cord around the entire carboy/keg. No sticky residue from tape that way and it holds no matter what temp/moisture is inside the keezer. Works well for me!

I put the probe against the carboy/keg, put about 5 layers of bubble wrap over it, then use a bungee cord around the entire carboy/keg. No sticky residue from tape that way and it holds no matter what temp/moisture is inside the keezer. Works well for me!

I use wide, blue painters tape. If the fermenter is reasonably dry, it works perfectly, with no residue. About a 10 inch piece does the trick. I have done this for about a year with never a problem.

Question: why does it need to both heat and cool simultaneously (and how can it) when there is only one temperature control? Am I misreading? Or is it merely so that you don't have to rewire everything when switching from the need for cold to the need for heat? You just move the temperature probe to the carboy needing regulated, and if you need heat, you plug in your space heater to the warm plug, whereas if you need cold, you put it in the freezer and plug it in to the cold plug? And what is the deal with airplane food?

I'm about to start lagering and was eyeballing the Johnson digital, but I really like this look and feel and think it may very well last longer based on some of the Johnson reviews I've read.

Sorry for the potentially dumb questions. I like to keep things simple (not necessarily easy, but not overdone for what we are trying to accomplish as home brewers), so you'll never see me with a cold-fusion atomic accelerating perpetual motion automated brewery...but I do want to be able to control temperature effectively.